W. H. PEARSON: HEPATIC, 37 
LEPTOLEJEUNEA VITREA (Nees), St., Sp. Hep. v. (1913) 389. 
Jungermannia vitrea Nees, Enum. Hep. Javan. 56. 
Lejeunea vitrea Nees, Syn. Hep. 402. 
Dioicous. Minute, hyaline or pale grey in colour, creeping on other 
hepaties. Stem irregularly branched, 2 to 3 cells wide. Leaves, lobe erecto- 
patent (30°), approximate, oval-acute, upper portion serrate, antical (upper) 
margin extending to the middle of stem, base narrow, lobule patent-divergent 
(70°), 4 times smaller than the lobe, oval, twice as long as high, involute, 
free angle acute, tumid, keel arcuate, smooth ; cells smallish to medium size, 
4-5-6-sided quadrate, ocelli irregularly disposed or linear, 3 to 6 large. 
Underleaves 3 times broader than the stem, broadly quadrate, 2 cells high by 
3 broad, with 4- to 6-celled uniseriate crura proceeding from the middle or 
upper angle, sometimes 1 or 2 minute teeth below the crura. 
Inflorescence 9 on short branches; bracts, lobe lanceolate-acuminate, 
entire, or with 1 or 2 teeth, lobule similar but smaller ; bracteole lanceolate- 
acute, bifid to below the middle, entire. Perianth obovate, cornute, horns 
long, obtuse, margin entire. 
Male plant more delicate, catkins long, 4 to 6 pairs of bracts, closely im- 
bricate. 
Dimensions. Stems 3 inch long, diam, ‘075 mm.; with leaves 1 mm. wide; 
leaves, lobe *9 mm.x:4 mm., lobule :35 mm.x:2 mm. ; cells ‘03 mm., ocelli 
‘04 mm.x 035 mm.; underleaves ‘4 mm. x:1 mm.; bracts, lobe *5 mm. 
x'15 mm, lobule *£ mm.x*l mm.; bracteole ‘3 mm.x'15 mm., segments 
‘15 mm. ; perianth *6 mm. x*4 mm. 
Obs. Y have had the opportunity of comparing my specimens with those 
under this name collected by Balansa in New Caledonia and determined by 
Stephani; they entirely agree with them. 
Hab. Ermitage Stream. Epiphyllous on Fern and Freycinetia, ete. 145. 
Java, New Guinea, Philippine Islands. 
LEPTOLEJEUNEA DOLABRIFORMIS Pearson, sp. nov. 
Dioica, parva brunnea vel albescens supra folia repens. Caulis irregu- 
lariter bipinnatus cellulas 2 latus. Folia contigua patula alterna parum 
concava vel plana suboblongo-quadrata, margine inferiore (postico) recto vel 
parum curvato, superiore (antico) recto vel ad basin versus curvato et 
aulem aliquantum obtegente, apice truncato vel parum hamato et acuto, 
margine integro; cellule parvule quadrate pachydermes, trigonis nullis, - 
ocellis lineariformibus 3-6-cellularibus vel irreglariter dispositis ; lobulus 
ovatus paullo longior quam altus involutus, angulo libero acuto, quam lobus 
4-5-plo minor, interdum nullus.  Foliola late et breviter cuneata bisecta 
cruribus valde divergentibus horizontalibus vel paullo ascendentibus cellulas 
9 uniseriatas longis. 
